Tube-mill.



G. S. EMERIGK.

TUBE MILL.

APPLOATION FILED JUNE 25, 1908.

PantedJuly 13, 1909.

`GEORGE S. EMERICK, OF NAZARETH, PENNSYLVANIA.

TUBE-MILL.

are. sentis.

Specification of Letters Patent.`

Patented .Tulv 1 3, 1909.

Application :ned rune 25, 190s. serial No. 440,228.

.Tifo all fio/tom it 'may concern:

il: known that l, Gannon S. EMERICK, citizen of the United States, residing at llazaretln in the county of Northampton and State of Pennsylvania., have invented e new and ln'iproved l`ubc-\lill, oi' which the following is a specilication. hay invention relates to that class ol' com* initiating or reducingil machinery known as tube or pebble mills, wherein the grinding or reduction is accoiniilished by a mass ol' pcbbles or steel balls within a relatively horizontal rotating cylinder. lin mills` olf this class the action ol' the pebbles tends to Wear the interior ol the mill quito smooth, lwith the result that the mass ol pehhles'shi'l't slightly as the mill rotates andV neither mix thoroughly with the material to be ground nor, in consequence. ellen-tively reduce the latter. vllo overcome this detect ribs or flanges are sometimes disposed 'upon the Vinner surface ol' the inill and parallel with the axis therool', their object beinev to carry up and dum p the pebbles as the mill rotates and thereby more completely mit: the pebbles and the materia to he ground. l have obyiatted this defect in existingy mills ol this clase lleroinbelow described, and shown in the accompanying drawings, in which--M .lligrure l. is a View, in longitudinal el' the entire mill, and l=v`i !;s. 2, El and l are views, in cross-section, ol the several compartments ol' the mill, on the lines 2--2, 3-3 and ls-M4, respectively in llig. l..

ln lfig'. l the body of the mill, lor-med in the sections or compartnients l1, 12 and l,-

is mounted in. the ordinary manner upon the supports 2, 5? and .is adapted to be rotated in the ordinary `manner by any suitable n'iechanism (not slmwu). '.lhe mill is pro vided with the leed inlet fl. and ,discl'iarge outlet The sections ll, il and ls are elliptical in cross section. and so arranged that the major aires ol the successivo sections are separated by an ang-le of (300. The sections l1, 12 and l'd are provided with circular external. flanges in order that the sections may by an entirely novel ineansh section,`

be firmly at 6 and 7, Fig. 1, forming a rigid and continuous mill bod By thus forming the inter-oomn1unioat1ng sections or com art-' ments of my tube mill the mass of pebbles in each section is kept ellectiyely in motion, being carried up and rolled over upon itself With the result of greatly increasing the grinding or eomminutingr action and proportionately increasing the output of the mill. In order to counter-balance the throw or jerk of each section, separately considered, I haveformed the mill in separate inter-com- Inunicatingr sections With major axes forming suoli an angle with each other that the throw in each compartment takes place at equidistant intervals in a single complete revolution of the mill.

The essence ol my invention consists first, in having the sections of the tube mill elli pf tical. in cross section, and secondly, in so disposing the successive sections relatively to each other as to counter balance the mill when in use. vFor example: if the mill is composed of two sections, their major ages will be separated by an angle of 90.' If three sections are employed, their major axes will be separated by angles of 60o, and so on. therefore do not confine myself to any particular number of sections Whercwith to compose the mill.

llVhat l claim as my invention and desire to secure by Letters Patent is- 1. A tube mill composed of a plurality of inter-cominunicating sections or compartments elliptical in cross-section and having their corresponding axes angularly disposed.4

2. A tube mill composed ot inter-communicating sections elliptical in cross-section and so disposed relatively to each other that the major axes of the successive sections are sepznfated by equal angles, substantially as described.

GEORGE S. EMERIOK.

Witnesses:

ALBERT J. MEYER, CHRIS. E. S'rrvnn.

bolted or secured each to each, as 

